Candria Gray and her two children live in Worcester, Massachusetts, where they rely on city buses to get nearly everywhere: college classes, elementary school, the pediatrician’s office. By 2017, when the Worcester Regional Transit Authority raised fares from $1.50 per ride to $1.75, Gray was spending as much as $12 a day on transit — a good chunk of her budget as a single mom. And the increased fare was not accompanied by improved service.